broomhall



(No Model.) 2 Sheets-Sheet 1..

G. L. BROOMHALL.

STOP LOCK AND SAFETY BLOCK FOR RAILROADS.

No. 304,698. Patented $ept. 9, 1884.

(No Model.) 2 Sheet-Sheet 2. G. L. BROOIVIHALL.

STOP LOOK AND SAFETY BLOGK FOR RAILROADS'.

No. 304,698. Patented Sept. 9, 1884.

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- vation.

and are provided with holes d.

NITE STATES PATENT Erica.

. GEORGE'L. BROOMHALL, OF PATERSON, NEWV JERSEY.

STOP-LOCK AND SAFETY-BLOCK FOR RAILROADS.

SPECIFICATION forming part of Letters Patent No. 304,698, datedSeptember 9,1884.

Application filed March 14, 1884. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE L. BROOM- HALL, a citizen of the UnitedStates, residing at Paterson, Passaic county, State of New Jersey, haveinvented a new and useful Improvement in Stop-Locks and Safety-Blocksfor Railroads, of which the following is a speci: fication, referencebeing had to the accompanying drawings, forming a part thereof, inwhich- Figure 1 shows one side of the block in ele- Fig. 2 is a frontview of the same. Fig. 3 is a back view showing the end of theoperating-handle. Fig. 4 isa plan of the block. Fig. 5 is a partsectional plan taken on line a: m of Fig. 1. Fig. 6 is a side elevation,and Fig. 7 is a vertical sectional elevation, of a part of the block online .2 z of Fig. 1. Figs. 8 and 9, 10 and 11, 12 and 13, and 14; and 15are modifications of those above referred to.

A represents a portable stoplock and safetyblock, which block is animprovement on the one shown by me in a former application,and numbered116,592, filed January 7, 1884. The block A is constructed with sides orcheeks A, which sides or cheeks are curved at the top, The checks orsides A, on their inner sides or surfaces, havea recess, It, toaccommodate an operating handle or lever, D, the inner end of whichlever is provided with a sleeve, in which sleeve there is arranged andsuitably secured a shaft, E, that journals in the sides or cheeks A. Theouter ends of the shaft E are made square to accommodate square openingsthat are arranged in the ends of depending arms 0, which arms arearranged 011 the ends of said shaft E, and which are secured thereon bypins b. (Shown in Fig. '11) The cheeks or sides A have projections orhubs formed on the same to accommodate theends of the sleeve formed onthe handle or lever D, as shown in Fig. 5. The cheeks or sides A, whichare adjustably secured together at the top by a rivet, e, are made toconform at the bottom of the same to the rail B, and are supportedthereon, as shown in Fig. 7. There is arranged in the holes cl, formedin the cheeks or sides A, a suitable look, a. The outer bottom part ofthe cheeks or sides A are provided with inclined or wedge surfaces F,for the action of the arms 0. (Shown in Fig. 5.) In practice, theportable block is on the track B the devices are in the position shown.in Fig. 6. To secure the same in its placed position on the track orrail B, the handle or lever D is depressed by the attendant, whichaction brings the arms 0 into forcible contact with the inclined orwedge surfaces F, by which means, when the lever or handle D has reachedits lowest point of depression, the checks or sides A have been forcedinto heavy frictional contact with the rail B, and are firmly securedthereto, as shown in Figs. 1, 2, and 8, and the devices occupy theposition shown in the last-named figures. After the safety device hasbeen secured in position against the wheels of the cars in the mannerstated, and to guard against the danger of the portable block beingremoved from its position by designing persons, the look a is placed inthe hole at next above the lever D, and is locked, which action removesall danger of the cars secured thereby on switches, side tracks,downgrades, and elsewhere from escaping from their secured positions,from the jar of passing trains, high winds, steep grades, and other influences which so frequently roll cars from their side position onto themain track, to be run into by trains, causing great damage to property,and frequently to life and limb. If found desirable, for frictionalpurposes on the rail B, the sides or checks A may be made in themodified form shown in Figs. 8 and 9; or, if it be deemed advantageousto grip the rail by the web, and bolt wrought-iron guides to the sides,and form a curve to prevent a heavy shock on the block, the block maythen be made in the modified form shownin Figs. 10 and 11; and when itis desirable to secure guys or tackles to the lock-block the device maybe made in the modified form shown in Figs. 12 and 13; and if foundnecessary to augment the power of the lever on the sides or checks thedevice may be made in the modified form shown in Figs. 14 and 15.

Having described my invention and its operation, I claim and desire tosecure by Letters Patent In a stop lock and safety-blocks for railroads,

the combimttion, with the sides or checks A, l arranged to be broughtinto forcible contact provided with curved tops and having holes 3 withinclined or wedge surfaces F, and rail 13,

(l, for it lock, and recess is, to accommodate the for the action of thesides or cheeks, and lock handle or lever D, and inclined or wedge sunu, for locking the device, with rivet a, substan- 5 faces for the actionof the arms 0, of the hantially as set forth.

die or lever D provided with t sleeve, the le- 1 t 1 7 GLOP l: L 171OOMI-IALL.

Ver secured to the shzttt E, and shaft E, the x Y J L shaft journaled inthe sides or checks, the shaft YVitnesses:

having; square ends to accommodate arms Qand Hone-son A. PARK,

10 arms 0, adapted to fiton the shaft, the arms .TAMns 1;. YOUNG, Jr.

